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Department of Electr ical Engineer ing School of Electr ical Engineer ing
REVIEW OF MAGNETIC BALLAST DISCHARGEREVIEW OF MAGNETIC BALLAST DISCHARGE
LAMP MODELSLAMP MODELS
. c. . o na
School of Electrical Engineering (UCV)
Dr. L. Sainz, Dr. J. J. MesasDe . Electrical En ineerin ETSEIB, UPC
June 2011
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power distribution systems is increasing
because they have a longer life and higher.
Despite their small power, these lamps may
be an important source of harmonics because
the same bus.
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into installations by magnetic ballast lamps
have been conducted.
nuso a supp y vo age an pure near
inductive ballast are usually assumed in these
studies.
Moreover, the arc voltage is modeled as a.
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ballast DL models in the literature.
Moreover, the square arc voltage and ballast
near n uc ance assump ons are scusse
and laboratory measurements.
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Equation characterizing the currentR
BA
Lb(i)
b
i BA
( )1
( )( ) ,( )b
AdR i v v
d
+ + =
sua assump on n e mo e ng o e s:
v
Magnetic ballast
The ballast inductance is considered linear
vA
C
vA if 0,
if 0
A Av V i
v V i
= >
=